| 水合醋酸铈直接热分解制备超细氧化铈及其抛光性能 | |
| Preparation and Polishing Property of Ultra Fine Ceria by Calcining Hydrate Cerium Acetate Directly | |
| 摘要: | |
| 关键词: 水合醋酸铈 热分解 超细氧化铈 抛光 | |
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| Abstract: Ultra fine ceria was prepared by calcining hydrate cerium acetate. The effects of pyrolysis temperature on the particle size, morphology, specific surface area and loose packing density of ceria were investigated, and the removal rate of optical glasses polishing by ceria was determined. The results show that with the increase of pyrolysis temperature, the loose deposit density and crystallinity increases and the specific surface area decreases, however, the particle size decreases firstly and then increases, the minimum medium particle size D50 is 0.47 μm at pyrolysis temperature of 1 000 ℃. The SEM images of ceria prepared by the decomposition at 800 ℃ or at 1 100 ℃ show porous powders or quasi-sphere small particles with loosely agglomeration, respectively. It was found that the removal rate varied with pyrolysis temperature in preparation of ceria and the property of glass polished. The removal rate for three kinds of glasses was in the order of ZF7> F1> K9, and the maximum value appeared at around 1 000 ℃ for ZF7 and F1, and at around 1 100 ℃ for K9. | |
| Keywords: hydrate cerium acetate pyrolysis ultra fine ceria polishing | |
| 摘要点击次数: 1806 | |
| 全文下载次数: 1983 | |
| 李永绣,程昌明,陈伟凡,胡建东,周雪珍,胡平贵,辜子英,周新木.水合醋酸铈直接热分解制备超细氧化铈及其抛光性能[J].无机化学学报,2006,22(4):733-737. | |
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